package com.jsy.community.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;


/**
 * @Description:
 * @Auther: zhouxw
 * @Date: 2019/11/26 16:28
 * @company：CTTIC
 */
@Component
public class SpringUtil implements ApplicationContextAware {
	
	private static ApplicationContext applicationContext;
	
	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		if(SpringUtil.applicationContext == null) {
			SpringUtil.applicationContext = applicationContext;
		}
		System.out.println("---------------------------------------------------------------------");
		
		System.out.println("---------------------------------------------------------------------");
		
		System.out.println("---------------me.shijunjie.util.SpringUtil------------------------------------------------------");
		
		System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringUtil.applicationContext+"========");
		
		System.out.println("---------------------------------------------------------------------");
	}
	
	//获取applicationContext
	public static ApplicationContext getApplicationContext() {
		return applicationContext;
	}
	
	//通过name获取 Bean.
	public static Object getBean(String name){
		return getApplicationContext().getBean(name);
	}
	
	//通过class获取Bean.
	public static <T> T getBean(Class<T> clazz){
		return getApplicationContext().getBean(clazz);
	}
	
	//通过name,以及Clazz返回指定的Bean
	public static <T> T getBean(String name,Class<T> clazz){
		return getApplicationContext().getBean(name, clazz);
	}
	
}
